Fastening foe



UNITE STATES P 'ria'r orme JOHN BIRD, OF BIRMINGHAM, PENNSYLVANIA, ASSIGNOR TO BAKElVELL, FEARS & CO., OF

PITTSBURG, PENNSYLVANIA.

FASTENING FOR METALLIC COVERS T0 GLASS VESSELS.

Specification of Letters Patent No. 29,743, dated August 21, 1860.

T o all 'whom it may concern:

Be it known that I, JOHN BIRD, of Bir-v mingham, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in the mode of attaching metallic covers to mugs, pitchers, and other vessels made of glass, china, or other earthenware; and I do hereby declare the following to be a full, clear, and exact description thereof, reference being had to the accompanying drawing, forming part of this specification, in which- Figure 1 is a perspective representation of a lager beer mug with a cover attached on my improved plan. Fig. 2 is a side view of the metallic cover and the glass lugs on the rim of the mug by which the cover is attached. Fig. 3 is a horizontal section through the mug at .a2-, Fig. 2 showing the shape and position of the glass lugs.

In the several figures, like letters of reference denote similar parts.

My improvement consists in a new mode of attaching metallic hinged covers or lids to various articles made of glass, china or other earthenware, such as lager beer mugs, cream pitchers, molasses pitchers, &c. Various plans have been tried for accomplishing this object most of which are troublesome, expensive and inconvenient. This arises chiefly from the hardness and brittleness of glass and earthenware which makes it very difficult to attach to them anything metallic with sufficient firmness to resist the strain of a hinged cover. This is sometimes done by cementing a metallic ring around the rim of the vessel and then attaching the cover by a hinge to the ring-but in vessels used for drinking such as lager beer mugs this would be very unpleasant. It is therefore necessary to devise some plan of attaching the cover to the vessel by the hinge alone so that the cover will shut down on the glass and when the cover is raised, open the whole space of the mouth of the vessel, and to effect this the metal must have a firm and secure hold on the glass.

My invention then, consists in the employment for the purpose stated of a lug or lugs, pressed at any convenient point in the circumference of the rim of the vessel and projecting from it, in combination with a hinged cover, so constructed that the lower hinge piece passes into or between the lugs,

and is held in place by a screw and washer, or other suitable device.

To enable others skilled in the art to make use of my improvement, I will proceed to to which my invention is especially designed L i to apply; Z) is the cover which is made of metal, and its closely on top of the mug, having a hinge c and thimble piece d by which it is raised at pleasure.

At any suitable point in the circumference of the mug (near the handle f being the most convenient place) there are two lugs e c which project a short distance from the outside of the`y glass, near to the edge or rim of the mug; they do not project far from the glass, and are wide and deep, so as to be strong andV not liable to be broken; the upper surface and under surface of the lugs are iiat, and smooth, and the upper surface (on which the lower hinge piece rests) is level with the top of the mug as seen in Fig. 1. The opposite faces of these lugs e e are vertically parallel, but so shaped horizontally as to form a dovetailed cavity or mortise to receive a pin or tenon g of corresponding shape, which depends from the under side of the lower hinge piece o of the cover. This tenon or pin g is of metal, being of one piece with the lower hinge piece, and may be long enough to extend down to the bottom of the lugs or otherwise. It is of dovetailed shape so that while'it may be easily inserted vertically into the cavity, between the lugs it cannot pass horizontally from between them; it therefore only needs some contrivance to keep it down in its place in order to secure it firmly to the glass. To eifect this I have a metallic washer h which is placed on the under side of the projecting lugs e e and a screw s is passed upward into the pin g having its head resting against the washer. The pin is thus drawn downward holding the hinge piece rmly in position. In case the glass should break or it is desired for any reason to remove the cover it may easily be done and replaced on the same or anotherl vessel. The hinge piece may also be held down, though not so firmly, by upsetting the end of the pin g, which in that case should project downward below the lugs a short distance. The cavity between the lugs may be made triangular, semicircular, or of other shape, which will serve to prevent the pin from passing on backward horizontally-the pin being made to correspond in shape with the cavity.

The lugs may be very easily pressed, in case of a lager beer mug or other pressed article, by making a suitable recess in the ring of the mold, which having a vertical motion, will make the dovetailed recess between the lugs. Instead of two lugs placed near to each other, one may be pressed with a dovetailed cavity. The handle of the mug (being entirely independent of the cover and of the hinge piece by which the cover is attached) may be cast on at any suitable place, near to the lugs so that the thumb of a person using the mug, may be in reach of the thumb piece of the cover; or if preferred, it will not interfere with the arrangement for attaching the cover to cast the handle onto the mug with its upper end resting on the proj eeting ends of the lug or lugs.

What I claim as my invention and desire to secure by Letters Patent is- Jattaching the metallic hinged cover to lager beer glasses and other vessels made of glass or earthenware by means of a lug or l-ugs pressed on the rim of the vessel having a suitable cavity in it if there be one lug only, or between them, if there be two lugsin combination with a hinged cover having a tenon or pin to lit into said cavity attached to the lower hinge piece-the whole being arranged and constructed and attached substantially as hereinbefore described.

In testimony whereof, the said JOHN BLRD hath hereunto set his hand in presence of us.

JOHN BIRD.

Witnesses:

MARTIN G. CUSHING, J. DENTON HANCOCK. 

